Backless corner support



FIG. 1 is a perspective view of the backless corner support showing my new design, the broken lines showing straight channel pieces which the backless corner support is seated within are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is an interior side view; and,

FIG. 6 is a side view adjacent to that shown in FIG. 4. 

The ornamental design for a backless corner support, as shown and described. 